10 years agoThe patch adds support for the PCI cards: PCIcan and PCIcanx (1, 2 or 4 channel)...
Wolfgang Grandegger [Fri, 15 May 2009 23:39:33 +0000]
The patch adds support for the PCI cards: PCIcan and PCIcanx (1, 2 or 4 channel) from Kvaser (kvaser.com).

Signed-off-by: Per Dalen <per.dalen@cnw.se>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agocan: SJA1000 driver for EMS PCI cards
Wolfgang Grandegger [Fri, 15 May 2009 23:39:32 +0000]
can: SJA1000 driver for EMS PCI cards

The patch adds support for the one or two channel CPC-PCI and CPC-PCIe
cards from EMS Dr. Thomas Wuensche (http://www.ems-wuensche.de).

Signed-off-by: Sebastian Haas <haas@ems-wuensche.com>
Signed-off-by: Markus Plessing <plessing@ems-wuensche.com>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agocan: SJA1000 generic platform bus driver
Wolfgang Grandegger [Fri, 15 May 2009 23:39:31 +0000]
can: SJA1000 generic platform bus driver

This driver adds support for the SJA1000 chips connected to the
"platform bus", which can be found on various embedded systems.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agocan: Driver for the SJA1000 CAN controller
Wolfgang Grandegger [Fri, 15 May 2009 23:39:30 +0000]
can: Driver for the SJA1000 CAN controller

This patch adds the generic Socket-CAN driver for the Philips SJA1000
full CAN controller.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agocan: CAN Network device driver and Netlink interface
Wolfgang Grandegger [Fri, 15 May 2009 23:39:29 +0000]
can: CAN Network device driver and Netlink interface

The CAN network device driver interface provides a generic interface to
setup, configure and monitor CAN network devices. It exports a set of
common data structures and functions, which all real CAN network device
drivers should use. Please have a look to the SJA1000 or MSCAN driver
to understand how to use them. The name of the module is can-dev.ko.

Furthermore, it adds a Netlink interface allowing to configure the CAN
device using the program "ip" from the iproute2 utility suite.

For further information please check "Documentation/networking/can.txt"

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agocan: Update MAINTAINERS and CREDITS file
Wolfgang Grandegger [Fri, 15 May 2009 23:39:28 +0000]
can: Update MAINTAINERS and CREDITS file

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agocan: Documentation for the CAN device driver interface
Wolfgang Grandegger [Fri, 15 May 2009 23:39:27 +0000]
can: Documentation for the CAN device driver interface

This patch documents the CAN netowrk device drivers interface, removes
obsolete documentation and adds some useful links to CAN resources.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agonet: Add TI DaVinci EMAC driver
Anant Gole [Mon, 18 May 2009 22:19:01 +0000]
net: Add TI DaVinci EMAC driver

Add support for TI DaVinci EMAC driver.

TI DaVinci Ethernet Media Access Controller module is based upon
TI CPPI 3.0 DMA engine and supports 10/100 Mbps on all and Gigabit modes on
some TI devices. It supports MII/RMII and has up to 8Kbytes of internal
descriptor memory. This driver has been working on several TI devices including
DM644x, DM646x and DA830 platforms. The specs of this device are available at:
http://www.ti.com/litv/pdf/sprue24a

Signed-off-by: Anant Gole <anantgole@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoipv4: cleanup: remove unnecessary include.
Rami Rosen [Mon, 18 May 2009 01:47:52 +0000]
ipv4: cleanup: remove unnecessary include.

There is no need for net/icmp.h header in net/ipv4/fib_frontend.c.
This patch removes the #include net/icmp.h from it.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoipv4: cleanup - remove two unused parameters from fib_semantic_match().
Rami Rosen [Mon, 18 May 2009 01:19:12 +0000]
ipv4: cleanup - remove two unused parameters from fib_semantic_match().

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agovlan: use struct netdev_queue counters instead of dev->stats
Eric Dumazet [Mon, 18 May 2009 00:35:38 +0000]
vlan: use struct netdev_queue counters instead of dev->stats

We can update netdev_queue tx_bytes/tx_packets/tx_dropped counters instead
of dev->stats ones, to reduce number of cache lines dirtied in xmit path.

This fixes a performance problem on SMP when many different cpus take
vlan tx path.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agonet: add tx_packets/tx_bytes/tx_dropped counters in struct netdev_queue
Eric Dumazet [Mon, 18 May 2009 00:34:33 +0000]
net: add tx_packets/tx_bytes/tx_dropped counters in struct netdev_queue

offsetof(struct net_device, features)=0x44
offsetof(struct net_device, stats.tx_packets)=0x54
offsetof(struct net_device, stats.tx_bytes)=0x5c
offsetof(struct net_device, stats.tx_dropped)=0x6c

Network drivers that touch dev->stats.tx_packets/stats.tx_bytes in their
tx path can slow down SMP operations, since they dirty a cache line
that should stay shared (dev->features is needed in rx and tx paths)

We could move away stats field in net_device but it wont help that much.
(Two cache lines dirtied in tx path, we can do one only)

Better solution is to add tx_packets/tx_bytes/tx_dropped in struct
netdev_queue because this structure is already touched in tx path and
counters updates will then be free (no increase in size)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Increase the driver version number
Peter P Waskiewicz Jr [Sun, 17 May 2009 20:58:21 +0000]
ixgbe: Increase the driver version number

Marching along, let's bump the version number to indicate things actually
have happened to the driver.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add generic XAUI support to 82599
Peter P Waskiewicz Jr [Sun, 17 May 2009 20:58:04 +0000]
ixgbe: Add generic XAUI support to 82599

This patch adds the generic XAUI device support for 82599 controllers.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: set max desc to prevent total RSC packet size of 64K
Alexander Duyck [Sun, 17 May 2009 20:57:47 +0000]
ixgbe: set max desc to prevent total RSC packet size of 64K

The performance of hardware RSC is greatly reduced if the total for max rsc
descriptors multiplied by the buffer size is greater than 65535.  To
prevent this we need to adjust the max rsc descriptors appropriately.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Mon, 18 May 2009 21:48:30 +0000]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-next-2.6

10 years agoixgbe: Don't reset the hardware when switching between LFC and PFC
Peter P Waskiewicz Jr [Sun, 17 May 2009 12:35:57 +0000]
ixgbe: Don't reset the hardware when switching between LFC and PFC

When running in DCB mode, switching between link flow control and priority
flow control shouldn't need to reset the hardware.  This removes that
reset.

This also extends the set_all() dcbnl callback to return a value indicating
that the HW config changed, however a reset was not required.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: When in DCB mode with PFC enabled, show LFC is disabled
Peter P Waskiewicz Jr [Sun, 17 May 2009 12:35:36 +0000]
ixgbe: When in DCB mode with PFC enabled, show LFC is disabled

Ethtool should report that link flow control is disabled when in priority
flow control mode.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Allow link flow control in DCB mode for 82599 adapters
Peter P Waskiewicz Jr [Sun, 17 May 2009 12:35:16 +0000]
ixgbe: Allow link flow control in DCB mode for 82599 adapters

82599 supports using either link flow control or priority flow control when
in DCB mode.  The dcbnl interface already supports sending down
configurations through rtnetlink that can enable LFC when DCB is enabled,
so the driver should take advantage of this.

82598 does not support using LFC when DCB is enabled, so explicitly disable
it when we're in DCB mode.  This means we always run in PFC mode when DCB
is enabled.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Set Priority Flow Control low water threshhold for DCB
Peter P Waskiewicz Jr [Sun, 17 May 2009 12:34:55 +0000]
ixgbe: Set Priority Flow Control low water threshhold for DCB

This sets the low water threshhold for priority flow control for 82598
and 82599 controllers in DCB mode.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Enable jumbo frame for FCoE feature in 82599
Yi Zou [Sun, 17 May 2009 12:34:35 +0000]
ixgbe: Enable jumbo frame for FCoE feature in 82599

Enable jumbo frame when FCoE feature is enabled in 82599. Use 3K
as the receive queue buffer size for receive queues used by FCoE
to address for max Fiber Channel frame size as 2148 bytes (with
max 2112 bytes of payload).

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Enable FCoE redirection table feature in 82599
Yi Zou [Sun, 17 May 2009 12:34:14 +0000]
ixgbe: Enable FCoE redirection table feature in 82599

Enable using FCoE redirection table feature in 82599. The FCoE
redirection table has maximum of eight entries, corresponding
to maximum of eight receive queues to be used for distributing
incoming FCoE packets. This patch sets up the FCoE redirection
table when multiple receive queues are available for FCoE.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add RING_F_FCOE for FCoE feature in 82599
Yi Zou [Sun, 17 May 2009 12:33:52 +0000]
ixgbe: Add RING_F_FCOE for FCoE feature in 82599

Add ring feature for FCoE to make use of the FCoE redirection
table in 82599. The FCoE redirection table is a receive side
scaling feature for Fiber Channel over Ethernet feature in 82599,
enabling distributing FCoE packets to different receive queues
based on the exchange id.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agofcoe: adds spma mode support
Vasu Dev [Sun, 17 May 2009 12:33:28 +0000]
fcoe: adds spma mode support

If we can find a type NETDEV_HW_ADDR_T_SAN mac address from the
corresponding netdev for a fcoe interface then sets up added the
fc->ctlr.spma flag and stores spma mode address in ctl_src_addr.

In case the spma flag is set then:-

 1. Adds spma mode MAC address in ctl_src_addr as secondary
    MAC address, the FLOGI for FIP and pre-FIP will go out
    using this address.
 2. Cleans up stored spma MAC address in ctl_src_addr in
    fcoe_netdev_cleanup.
 3. Sets up spma bit in fip_flags for FIP solicitations along
    with exiting FPMA bit setting.
 4. Initialize the FLOGI FIP MAC descriptor to stored spma
    MAC address in ctl_src_addr. This is used as proposed
    FCoE MAC address from initiator along with both SPMA
    and FPMA bit set in FIP solicitation, in response the
    switch may grant any FPMA or SPMA mode MAC address to
    initiator.

Removes FIP descriptor type checking against ELS type
ELS_FLOGI in fcoe_ctlr_encaps to update a FIP MAC descriptor,
instead now checks against FIP_DT_FLOGI.

I've tested this with available FPMA-only FCoE switch but
since data_src_addr is updated using same old code for
both FPMA and SPMA modes with FIP or pre-FIP links, so added
SPMA mode will work with SPMA-only switch also provided that
switch grants a valid MAC address.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agofcoe: consolidates netdev related config and cleanup for spma mode
Vasu Dev [Sun, 17 May 2009 12:33:08 +0000]
fcoe: consolidates netdev related config and cleanup for spma mode

Currently fcoe_netdev_config adds netdev pkt handler for fcoe pkts,
fcoe_if_create adds netdev pkt handler for fip packets, a secondary
MAC address is added by fcoe_netdev_config and then later cleanup
for these netdev related config/adds is done only during
fcoe_if_destroy and no cleanup done on error during fcoe interface
creation after above netdev config calling in fcoe_if_create.

So this patch adds single func for above mentioned cleanup the
fcoe_netdev_cleanup and then calls this func on either fcoe interface
destroy or exiting from fcoe_if_create due to an error after fcoe/fip
related above netdev config is done.

Moved netdev pkt handler addition code blocks for fip pkts close to
similar code block for foce pkt in fcoe_netdev_config, so that added
fcoe_netdev_cleanup could be called on error from fcoe_netdev_config
to undo these both additions for fcoe/fip pkt handlers. This move
required reference to fcoe_fip_recv in fcoe_netdev_config, so moved
fip related functions fcoe_fip_recv, fcoe_fip_send and
fcoe_update_src_mac above fcoe_netdev_config.

This consolidation will enable spma mode support in next patch to
easily add or delete spma mode mac address beside fixing current
no cleanup issue during error.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add SAN MAC address to the RAR, return the address to DCB
Waskiewicz Jr, Peter P [Sun, 17 May 2009 12:32:48 +0000]
ixgbe: Add SAN MAC address to the RAR, return the address to DCB

After acquiring the SAN MAC address from the EEPROM, we need to program it
into one of the RARs.  Also, DCB will use this MAC address to run DCBX
commands, so it doesn't have to play musical MAC addresses when things like
bonding enter the picture.  So we need to return the MAC address through
the netlink interface to userspace.

This also moves the init_rx_addrs() call out of start_hw() and into
reset_hw().  We shouldn't try to read any of the RAR information before
initializing our internal accounting of the RAR table, which was what
was happening.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add FCoE Storage MAC Address support
PJ Waskiewicz [Sun, 17 May 2009 12:32:25 +0000]
ixgbe: Add FCoE Storage MAC Address support

This patch implements the Storage Address entrypoint from the net device.
It will read the SAN MAC addresses from the EEPROM of the 82599 hardware,
and make them available to the FCoE stack through the net device.

Also, add/del the SAN MAC address to the netdev dev_addr_list via the
kernel api dev_addr_add()/dev_addr_del() when there is a valid SAN MAC
supported by the HW.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoskfddi: convert PRINTK() to pr_debug()
Alexander Beregalov [Fri, 15 May 2009 10:22:42 +0000]
skfddi: convert PRINTK() to pr_debug()

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agomac89x0: remove PRINTK()
Alexander Beregalov [Fri, 15 May 2009 10:22:41 +0000]
mac89x0: remove PRINTK()

There are no users of it.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agode620: convert PRINTK() to pr_debug() and cleanup
Alexander Beregalov [Fri, 15 May 2009 10:22:40 +0000]
de620: convert PRINTK() to pr_debug() and cleanup

Also remove DE620_DEBUG and de620_debug.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agode600: convert PRINTK() to pr_debug()
Alexander Beregalov [Fri, 15 May 2009 10:22:39 +0000]
de600: convert PRINTK() to pr_debug()

Also remove de600_debug as it is not needed.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agode620: fix forgotten semicolon
Alexander Beregalov [Fri, 15 May 2009 10:22:38 +0000]
de620: fix forgotten semicolon

It seems it always was here.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agodrivers/net: Convert #ifdef DEBUG printk(KERN_DEBUG to pr_debug(
Joe Perches [Fri, 15 May 2009 07:59:42 +0000]
drivers/net: Convert #ifdef DEBUG printk(KERN_DEBUG to pr_debug(

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agosfc: Use generic XENPAK register definitions
Ben Hutchings [Fri, 15 May 2009 06:06:16 +0000]
sfc: Use generic XENPAK register definitions

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agomdio: Add XENPAK LASI register definitions
Ben Hutchings [Fri, 15 May 2009 06:05:49 +0000]
mdio: Add XENPAK LASI register definitions

These registers were originally defined for XENPAK modules, but are
also implemented by many other 10G PHYs.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agomdio: Add 10GBASE-T SNR register definition
Ben Hutchings [Fri, 15 May 2009 06:04:12 +0000]
mdio: Add 10GBASE-T SNR register definition

These do not have an in-kernel user but may be useful to user-space.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agosmsc95xx: strip ethernet fcs (crc) on receive path
Peter Korsgaard [Wed, 13 May 2009 10:10:41 +0000]
smsc95xx: strip ethernet fcs (crc) on receive path

The smsc95xx driver was forwarding the trailing fcs on received frames
up the stack leading to confusion in tcpdump.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Tested-by: Steve Glendinning <steve.glendinning@smsc.com>
Acked-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agodm9601: trivial comment fixes
Peter Korsgaard [Wed, 13 May 2009 10:09:53 +0000]
dm9601: trivial comment fixes

The comments describing the rx/tx headers used a combination of zero-
and 1-based indexing, leading to confusion.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agonet: tx scalability works : trans_start
Eric Dumazet [Mon, 18 May 2009 03:55:16 +0000]
net: tx scalability works : trans_start

struct net_device trans_start field is a hot spot on SMP and high performance
devices, particularly multi queues ones, because every transmitter dirties
it. Is main use is tx watchdog and bonding alive checks.

But as most devices dont use NETIF_F_LLTX, we have to lock
a netdev_queue before calling their ndo_start_xmit(). So it makes
sense to move trans_start from net_device to netdev_queue. Its update
will occur on a already present (and in exclusive state) cache line, for
free.

We can do this transition smoothly. An old driver continue to
update dev->trans_start, while an updated one updates txq->trans_start.

Further patches could also put tx_bytes/tx_packets counters in
netdev_queue to avoid dirtying dev->stats (vlan device comes to mind)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agogigaset: remove unused structure member rcvbytes
Tilman Schmidt [Wed, 13 May 2009 12:44:18 +0000]
gigaset: remove unused structure member rcvbytes

The B channel data structure member rcvbytes was never set to
anything else but zero, so drop it.

Impact: cleanup
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agogigaset: remove UNDOCREQ config option
Tilman Schmidt [Wed, 13 May 2009 12:44:18 +0000]
gigaset: remove UNDOCREQ config option

Drop the kernel config option GIGASET_UNDOCREQ, permanently
activating the code it controlled, as there have been no reports
of problems caused by its activation but many problems caused by
it being disabled.
Also fix a few bad comments while we're at it.

Impact: cleanup
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agogigaset: move up Kconfig inclusion point
Tilman Schmidt [Wed, 13 May 2009 12:44:18 +0000]
gigaset: move up Kconfig inclusion point

In preparation for porting to kernel CAPI subsystem, include the
Gigaset driver's Kconfig directly from ISDN's instead of I4L's.

Impact: Kconfig reorganisation, no functional change
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agogigaset: documentation update
Tilman Schmidt [Wed, 13 May 2009 12:44:17 +0000]
gigaset: documentation update

Mention handling of unregisteted DECT wireless datasets in README.gigaset.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agogigaset: fix error return code
Tilman Schmidt [Wed, 13 May 2009 12:44:17 +0000]
gigaset: fix error return code

gigaset_register_to_LL() is expected to print a message and return 0
on failure. Make it do so consistently.

Impact: error handling bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agogigaset: skip unnecessary hex formatting
Tilman Schmidt [Wed, 13 May 2009 12:44:17 +0000]
gigaset: skip unnecessary hex formatting

Don't generate the hex representation of the payload data if it
isn't actually used afterwards.

Impact: optimization
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agogigaset: fix possible oops in error handling
Tilman Schmidt [Wed, 13 May 2009 12:44:17 +0000]
gigaset: fix possible oops in error handling

Use pr_warning() / pr_err() instead of dev_warn() / dev_err() in two
places where the dev pointer isn't guaranteed to be valid.

Impact: error handling bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agogigaset: remove obsolete references to m10x state table
Tilman Schmidt [Wed, 13 May 2009 12:44:17 +0000]
gigaset: remove obsolete references to m10x state table

The separation of state tables for base and M10x has long been
removed. Clean up remaining traces of it.

Impact: cleanup
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agobnx2: bnx2_tx_int() optimizations
Eric Dumazet [Tue, 12 May 2009 20:48:02 +0000]
bnx2: bnx2_tx_int() optimizations

When using bnx2 in a high transmit load, bnx2_tx_int() cost is pretty high.

There are two reasons.

One is an expensive call to bnx2_get_hw_tx_cons(bnapi) for each freed skb

One is cpu stalls when accessing skb_is_gso(skb) / skb_shinfo(skb)->nr_frags
because of two cache line misses.
(One to get skb->end/head to compute skb_shinfo(skb),
 one to get is_gso/nr_frags)

This patch :

1) avoids calling bnx2_get_hw_tx_cons(bnapi) too many times.

2) makes bnx2_start_xmit() cache is_gso & nr_frags into sw_tx_bd descriptor.
   This uses a litle bit more ram (256 longs per device on x86), but helps a lot.

3) uses a prefetch(&skb->end) to speedup dev_kfree_skb(), bringing
  cache line that will be needed in skb_release_data()

result is 5 % bandwidth increase in benchmarks, involving UDP or TCP receive
 & transmits, when a cpu is dedicated to ksoftirqd for bnx2.

bnx2_tx_int going from 3.33 % cpu to 0.5 % cpu in oprofile

Note : skb_dma_unmap() still very expensive but this is for another patch,
not related to bnx2 (2.9 % of cpu, while it does nothing on x86_32)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agotcp: tcp_prequeue() can use keyed wakeups
John Dykstra [Tue, 12 May 2009 15:34:50 +0000]
tcp: tcp_prequeue() can use keyed wakeups

When TCP frees up write buffer space, avoid waking up tasks that have
done a poll() or select() on the same socket specifying read-side
events.

This is an extension of a read-side patch by Eric Dumazet.

Signed-off-by: John Dykstra <john.dykstra1@gmail.com>
Acked-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agonet/ibmveth: fix panic in probe
Stephen Rothwell [Mon, 11 May 2009 21:44:51 +0000]
net/ibmveth: fix panic in probe

netdev->dev_addr changed from being an array to being a pointer, so we
should not take its address for memcpy().

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add FCoE related statistics to 82599
Yi Zou [Wed, 13 May 2009 13:12:16 +0000]
ixgbe: Add FCoE related statistics to 82599

This adds FCoE related statistics to 82599, including number Rx-ed and Tx-ed
FCoE packets, number of Rx-ed and Tx-ed FCoE packets in dwords, number of bad
Fiber Channel CRCs detected in FCoE packets, and number of FCoE packets dropped
on the Rx side.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Implement FCoE Rx side large receive offload feature to 82599
Yi Zou [Wed, 13 May 2009 13:11:53 +0000]
ixgbe: Implement FCoE Rx side large receive offload feature to 82599

This patch implements the FCoE Rx side offload feature in ixgbe_main.c
to 82599 using the Rx offload infrastructure code added in the previous
patch. The large receive offload by Direct Data Placement (DDP) for
FCoE is achieved by implementing the ndo_fcoe_ddp_setup and ndo_fcoe_ddp_done
in net_device_ops via netdev. It is up to the ULD, i.e., fcoe and libfc
to query and setup large receive offload accordingly through the corresponding
netdev upon creating fcoe instances.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add infrastructure code for FCoE large receive offload to 82599
Yi Zou [Wed, 13 May 2009 13:11:29 +0000]
ixgbe: Add infrastructure code for FCoE large receive offload to 82599

This adds infrastructure code for FCoE Rx side offload feature to
82599, which provides large receive offload for FCoE by Direct
Data Placement (DDP). The ixgbe_fcoe_ddp_get() and ixgbe_fcoe_ddp_put()
pair corresponds to the netdev support to FCoE by the function pointers
provided in net_device_ops as ndo_fcoe_ddp_setup and ndo_fcoe_ddp_done.
The implementation of these in ixgbe is shown in the next patch.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Implement FCoE Tx side offload features in base driver of 82599
Yi Zou [Wed, 13 May 2009 13:11:06 +0000]
ixgbe: Implement FCoE Tx side offload features in base driver of 82599

This patch implements the FCoE Tx side offload features in ixgbe_main.c
to 82599 using the Tx offload infrastructure code added in the previous
patch. This is achieved by the calling the FCoE Sequence Offload (FSO)
function ixgbe_fso() on the transmit path of ixgbe.

This patch also includes an EEPROM check to make sure the NIC we're loading
on is an offload-enabled SKU.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add infrastructure code for FCoE large send offload to 82599
Yi Zou [Wed, 13 May 2009 13:10:44 +0000]
ixgbe: Add infrastructure code for FCoE large send offload to 82599

This adds infrastructure code for FCoE Tx side offload feature to
82599, including Fiber Channel CRC calculation, auto insertion of
the start of frame (SOF) and end of frame (EOF) of FCoE packets,
and large send by FCoE Sequence Offload (FSO).

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add FCoE feature code to 82599
Yi Zou [Wed, 13 May 2009 13:10:21 +0000]
ixgbe: Add FCoE feature code to 82599

This adds the FCoE feature code ixgbe_fcoe.c to 82599. For a start, this patch
only adds ixgbe_configure_fcoe() to configure related register for FCoE to 82599.
In patches that follow, I will be adding more functions to ixgbe_fcoe.c to add
support of FCoE offload features to 82599.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add FCoE feature header to 82599
Yi Zou [Wed, 13 May 2009 13:10:01 +0000]
ixgbe: Add FCoE feature header to 82599

This adds the FCoE feature header ixgbe_fcoe.h to 82599. This header includes
the defines and structures required by the ixgbe driver to support various
offload features in 82599 for Fiber Channel over Ethernet (FCoE).  These offloads
features include Fiber Channel CRC calculation, FCoE SOF/EOF auto insertion,
FCoE Sequence Offload (FSO) for large send, and Direct Data Placement (DDP)
for large receive.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoixgbe: Add FCoE feature register defines to 82599
Yi Zou [Wed, 13 May 2009 13:09:39 +0000]
ixgbe: Add FCoE feature register defines to 82599

This adds FCoE related register defines to 82599.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agomv643xx_eth: Remove a stale PPC_MULTIPLATFORM
Emil Medve [Wed, 13 May 2009 06:04:58 +0000]
mv643xx_eth: Remove a stale PPC_MULTIPLATFORM

PPC_MULTIPLATFORM was killed in commit 28794d3 but this stale occurrence was
hiding the mv643xx_eth driver in some cases (e.g. Pegasos II)

Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agonet: remove needless (now buggy) & from dev->dev_addr (part2)
Jiri Pirko [Tue, 12 May 2009 22:40:12 +0000]
net: remove needless (now buggy) & from dev->dev_addr (part2)

Missed part of "&" removal.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agodrivers/net/82596.c: suppress warnings
Andrew Morton [Tue, 12 May 2009 10:48:37 +0000]
drivers/net/82596.c: suppress warnings

i386 allmodconfig:

drivers/net/82596.c: In function 'init_rx_bufs':
drivers/net/82596.c:544: warning: cast to pointer from integer of different size
drivers/net/82596.c:545: warning: cast to pointer from integer of different size
drivers/net/82596.c:548: warning: cast to pointer from integer of different size
drivers/net/82596.c:557: warning: cast to pointer from integer of different size
drivers/net/82596.c:565: warning: cast to pointer from integer of different size
drivers/net/82596.c:569: warning: cast to pointer from integer of different size
drivers/net/82596.c:575: warning: cast to pointer from integer of different size
drivers/net/82596.c: In function 'rebuild_rx_bufs':
drivers/net/82596.c:606: warning: cast to pointer from integer of different size
drivers/net/82596.c:608: warning: cast to pointer from integer of different size
drivers/net/82596.c: In function 'init_i596_mem':
drivers/net/82596.c:680: warning: cast to pointer from integer of different size
drivers/net/82596.c:681: warning: cast to pointer from integer of different size
drivers/net/82596.c: In function 'i596_rx':
drivers/net/82596.c:818: warning: cast to pointer from integer of different size
drivers/net/82596.c: In function 'i596_add_cmd':
drivers/net/82596.c:975: warning: cast to pointer from integer of different size
drivers/net/82596.c:979: warning: cast to pointer from integer of different size
drivers/net/82596.c: In function 'i596_start_xmit':
drivers/net/82596.c:1088: warning: cast to pointer from integer of different size
drivers/net/82596.c:1099: warning: cast to pointer from integer of different size
drivers/net/82596.c: In function 'i596_interrupt':
drivers/net/82596.c:1404: warning: cast to pointer from integer of different size

(ugh)

Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agosfc: modify allocation error message
Mike Travis [Tue, 12 May 2009 10:48:36 +0000]
sfc: modify allocation error message

Change error message when alloc_cpumask_var fails.

Repairs "cpumask: convert drivers/net/sfc".

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agocls_cgroup: remove unneeded cgroup_lock
Li Zefan [Tue, 12 May 2009 10:47:33 +0000]
cls_cgroup: remove unneeded cgroup_lock

We can remove this lock here, since we are in cgroup write handler and
thus the cgrp is guaranteed to be valid, and no lock is needed when
writing a u32 variable.

Signed-off-by: Li Zefan <lizf@cn.fujitsuc.com>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agonet: remove needless (now buggy) & from dev->dev_addr
Jiri Pirko [Mon, 11 May 2009 23:37:15 +0000]
net: remove needless (now buggy) & from dev->dev_addr

Patch fixes issues with dev->dev_addr changing from array to pointer.
Hopefully there are no others.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoipv4: remove an unused parameter from configure method of fib_rules_ops.
Rami Rosen [Mon, 11 May 2009 05:52:49 +0000]
ipv4: remove an unused parameter from configure method of fib_rules_ops.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agomac80211: make noack test available
Johannes Berg [Tue, 12 May 2009 20:05:40 +0000]
mac80211: make noack test available

There's this internal wifi_wme_noack_test variable that
we use to set the QoS control if set. For one, it is
unlikely that it is set. Secondly, if set it needs to
influence the IEEE80211_TX_CTL_NO_ACK TX control flag,
and finally we should also be able to set it at all, so
make it available in debugfs.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: IBSS supported rate fixes
Johannes Berg [Tue, 12 May 2009 19:18:38 +0000]
mac80211: IBSS supported rate fixes

Currently mac80211 announces a rate set with no basic rates,
this fixes it to use 1/2 or 6/9 Mbit as basic rates by default.
Additionally, mac80211 will currently adopt the peer's entire
rate set, rather than just the basic rate set; fix that too.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: don't connect to IBSS network with different privacy
Johannes Berg [Tue, 12 May 2009 18:47:32 +0000]
mac80211: don't connect to IBSS network with different privacy

Even when we find an IBSS with the SSID we're looking for, we
may not be able to connect to it because it has a key and we
don't, or vice versa. Avoid such situations by checking the
privacy capability bit.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: split out and decrease probe wait time
Johannes Berg [Tue, 12 May 2009 18:11:26 +0000]
mac80211: split out and decrease probe wait time

The time we wait for a probe response after probing an AP due to
beacon loss is currently the same as the monitoring interval, 2s.
This is far too long, APs should respond to probes within a
fraction of that time. To be able to adjust both values, add a
new constant IEEE80211_PROBE_WAIT, use it for checking the probe
response, and adjust it down to 200ms instead of 2 seconds.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: respond to beacon loss report only once
Johannes Berg [Tue, 12 May 2009 17:58:12 +0000]
mac80211: respond to beacon loss report only once

The driver might keep reporting beacon loss until we
disassociate -- catch that and don't respond to any
subsequent events until the probe is either successful
or we disassociate.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agowext: remove seq_start/stop sparse annotations
Johannes Berg [Tue, 12 May 2009 06:36:43 +0000]
wext: remove seq_start/stop sparse annotations

Even though they are true, they cause sparse to complain
because it doesn't see the __acquires(dev_base_lock) on
dev_seq_start() because it is only added to the function
in net/core/dev.c, not the header file. To keep track of
the nesting correctly we should probably annotate those
functions publically, but for now let's just remove the
annotation I added to wext.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agonl80211: Add RSC configuration for new keys
Jouni Malinen [Mon, 11 May 2009 18:57:58 +0000]
nl80211: Add RSC configuration for new keys

When setting a key with NL80211_CMD_NEW_KEY, we should allow the key
sequence number (RSC) to be set in order to allow replay protection to
work correctly for group keys. This patch documents this use for
nl80211 and adds the couple of missing pieces in nl80211/cfg80211 and
mac80211 to support this. In addition, WEXT SIOCSIWENCODEEXT compat
processing in cfg80211 is extended to handle the RSC (this was already
specified in WEXT, but just not implemented in cfg80211/mac80211).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agonl80211: Add IEEE 802.1X PAE control for station mode
Jouni Malinen [Mon, 11 May 2009 18:57:57 +0000]
nl80211: Add IEEE 802.1X PAE control for station mode

Add a new NL80211_ATTR_CONTROL_PORT flag for NL80211_CMD_ASSOCIATE to
allow user space to indicate that it will control the IEEE 802.1X port
in station mode. Previously, mac80211 was always marking the port
authorized in station mode. This was enough when drop_unencrypted flag
was set. However, drop_unencrypted can currently be controlled only
with WEXT and the current nl80211 design does not allow fully secure
configuration. Fix this by providing a mechanism for user space to
control the IEEE 802.1X port in station mode (i.e., do the same that
we are already doing in AP mode).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agonl80211: improve station flags handling
Johannes Berg [Mon, 11 May 2009 18:57:56 +0000]
nl80211: improve station flags handling

It is currently not possible to modify station flags, but that
capability would be very useful. This patch introduces a new
nl80211 attribute that contains a set/mask for station flags,
and updates the internal API (and mac80211) to mirror that.

The new attribute is parsed before falling back to the old so
that userspace can specify both (if it can) to work on all
kernels.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agonl80211: Validate MFP flag type when parsing STA flags
Jouni Malinen [Mon, 11 May 2009 18:57:55 +0000]
nl80211: Validate MFP flag type when parsing STA flags

NL80211_STA_FLAG_MFP was forgotten from sta_flags_policy. The previous
version added the flag due to the loop used in parse_station_flags,
but the proper behavior would be to allow nla_parse_nested() to go
through the policy for all flags.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agocfg80211: implement wext key handling
Johannes Berg [Mon, 11 May 2009 11:54:58 +0000]
cfg80211: implement wext key handling

Move key handling wireless extension ioctls from mac80211 to cfg80211
so that all drivers that implement the cfg80211 operations get wext
compatibility.

Note that this drops the SIOCGIWENCODE ioctl support for getting
IW_ENCODE_RESTRICTED/IW_ENCODE_OPEN. This means that iwconfig will
no longer report "Security mode:open" or "Security mode:restricted"
for mac80211. However, what we displayed there (the authentication
algo used) was actually wrong -- linux/wireless.h states that this
setting is meant to differentiate between "Refuse non-encoded packets"
and "Accept non-encoded packets".

(Combined with "cfg80211: fix a couple of bugs with key ioctls". -- JWL)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agowext: fix get_wireless_stats locking
Johannes Berg [Mon, 11 May 2009 14:06:36 +0000]
wext: fix get_wireless_stats locking

Currently, get_wireless_stats is racy by _design_. This is
because it returns a buffer, which needs to be statically
allocated since it cannot be freed if it was allocated
dynamically. Also, SIOCGIWSTATS and /proc/net/wireless use
no common lock, and /proc/net/wireless accesses are not
synchronised against each other. This is a design flaw in
get_wireless_stats since the beginning.

This patch fixes it by wrapping /proc/net/wireless accesses
with the RTNL so they are protected against each other and
SIOCGIWSTATS. The more correct method of fixing this would
be to pass in the buffer instead of returning it and have
the caller take care of synchronisation of the buffer, but
even then most drivers probably assume that their callback
is protected by the RTNL like all other wext callbacks.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agocfg80211: disallow interfering with stations on non-AP
Johannes Berg [Mon, 11 May 2009 12:43:13 +0000]
cfg80211: disallow interfering with stations on non-AP

On non-AP interfaces userspace has no business interfering with
the station management, this can confuse mac80211 (and other
drivers probably wouldn't support it anyway). Allow adding and
removing stations only on AP interfaces.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: Robust Action frame categories for MFP
Jouni Malinen [Mon, 11 May 2009 07:20:35 +0000]
mac80211: Robust Action frame categories for MFP

IEEE 802.11w/D9.0 introduces a mechanism for Action field Category
values to be used to select which Action frames are Robust. Public and
Vendor-specific categories are marked as not Robust in IEEE 802.11w;
HT will be marked not Robust in IEEE 802.11n. A new Vendor-specific
Protected category is allocated for Robust vendor-specific Action
frames. Another new category, Protected Dual of Action, is introduced
for protecting some existing Public Action frames (e.g., IEEE 802.11y
protected enablement).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agocfg80211: put wext data into substructure
Johannes Berg [Sat, 9 May 2009 18:09:03 +0000]
cfg80211: put wext data into substructure

To make it more apparent in the code what is for wext
only (and needs to be #ifdef'ed) put all the info for
wext into a substruct in each wireless_dev.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agocfg80211: constify key mac address in ops
Johannes Berg [Sat, 9 May 2009 18:06:47 +0000]
cfg80211: constify key mac address in ops

The address pointed to by mac_addr can be marked as const.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoath9k: Cleanup ineffective return values
Vasanthakumar Thiagarajan [Sat, 9 May 2009 00:54:51 +0000]
ath9k: Cleanup ineffective return values

This patch makes the return type of some of the functions
void as those functions always return true

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoath9k: Remove bogus break after return
Vasanthakumar Thiagarajan [Sat, 9 May 2009 00:54:50 +0000]
ath9k: Remove bogus break after return

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlwifi: default WMM AC parameters
Wey-Yi Guy [Fri, 8 May 2009 20:44:45 +0000]
iwlwifi: default WMM AC parameters

Set the default WMM AC parameters for BK/BE/VI/VO parameters:

AC        CWmin         CW max      AIFSN      TXOP Limit    TXOP Limit
                                              (802.11b)      (802.11a/g)
AC_BK      15            1023        7           0               0
AC_BE      15            1023        3           0               0
AC_VI       7              15        2          188             94
                                              (6.016ms)       (3.008ms)
AC_VO       3               7        2          102             47
                                              (3.264ms)       (1.504ms)

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlwifi: show qos AC parameters
Wey-Yi Guy [Fri, 8 May 2009 20:44:44 +0000]
iwlwifi: show qos AC parameters

Show current qos AC parameters in sysfs

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlagn: show current rate scale data in debugfs
Wey-Yi Guy [Fri, 8 May 2009 20:44:43 +0000]
iwlagn: show current rate scale data in debugfs

Add "rate_scale_data" debugfs file to show current bit rate (HT and Legacy),
plus additional information (rssi, noise, tsf, beacon time stamp).

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlwifi: use #define instead of hard coded value
Wey-Yi Guy [Fri, 8 May 2009 20:44:42 +0000]
iwlwifi: use #define instead of hard coded value

Instead of hard coded value, use the define in iwl-commands.h for
better code maintenance

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwl3945: read rev id in nic config
Abhijeet Kolekar [Fri, 8 May 2009 20:44:41 +0000]
iwl3945: read rev id in nic config

Read rev id in nic_config instead of nic_init.
Nic_config has some checking for rev_id but we actually don't read
the rev_id in there.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlwifi: more descriptive unsupported hardware message
Reinette Chatre [Fri, 8 May 2009 20:44:40 +0000]
iwlwifi: more descriptive unsupported hardware message

Somehow these pre-production cards are showing up in the community.
With this message we hope that it will be clear that the hardware is not
supported.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlagn: improve rate scale table search
Mohamed Abbas [Fri, 8 May 2009 20:44:39 +0000]
iwlagn: improve rate scale table search

iwlagn rate scaling will periodically search other rate scale
tables to switch to the best table regarding performance. In the past
the number of search tables were 3. Every time the rate scale algorithm
goes through these available tables in will stay in current table for
some time before start searching again. Recent driver support more
feature and antenna, so we have more tables to search. This patch make
sure we go through all available tables.

Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlwifi: clean up PS code
Johannes Berg [Fri, 8 May 2009 20:44:38 +0000]
iwlwifi: clean up PS code

This removes all the dead code that tries to adjust the power
saving level based on the system AC state (inacceptable policy
in the kernel) or based on overtemp conditions (unused).

Also, pass _all_ policy wrt. enabling PS to mac80211, since
we do not use the power_disabled internally I now use that to
mirror the mac80211 CONF_PS setting. When mac80211 turns off
CONF_PS we follow suit. This means that the user power level
(which can currently only be set from sysfs) is not touched
for mac80211 powersave changes.

This means no "association status" checks are necessary since
mac80211 will not allow power save to be enabled when not
associated.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlwifi: fix PS disable status race
Johannes Berg [Fri, 8 May 2009 20:44:37 +0000]
iwlwifi: fix PS disable status race

iwlwifi internally needs to keep track of whether PS
is enabled in the firmware or not. To do this, it keeps
a bit in the status flags, called STATUS_POWER_PMI.

The code to set this bit looks as follows:

static int iwl_set_power(struct iwl_priv *priv, void *cmd)
{
return iwl_send_cmd_pdu_async(priv, POWER_TABLE_CMD,
      sizeof(struct iwl_powertable_cmd),
      cmd, NULL);
}

int iwl_power_update_mode(...)
{
[...]
if (final_mode != IWL_POWER_MODE_CAM)
set_bit(STATUS_POWER_PMI, &priv->status);

iwl_update_power_cmd(priv, &cmd, final_mode);
cmd.keep_alive_beacons = 0;

if (final_mode == IWL_POWER_INDEX_5)
cmd.flags |= IWL_POWER_FAST_PD;

ret = iwl_set_power(priv, &cmd);

if (final_mode == IWL_POWER_MODE_CAM)
clear_bit(STATUS_POWER_PMI, &priv->status);
else
set_bit(STATUS_POWER_PMI, &priv->status);

if (priv->cfg->ops->lib->update_chain_flags && update_chains)
priv->cfg->ops->lib->update_chain_flags(priv);
[...]
}

Now, this bit really needs to track what the _firmware_
thinks, not what the driver thinks. Therefore, there is
a race condition here -- the driver sets the bit before
it knows that the async command sent to the card in the
iwl_set_power function has been processed. As a result,
the call to update_chain_flags() may think that the card
has been woken up (PMI bit cleared) while in reality it
hasn't processed the async POWER_TABLE_CMD yet.

This leads to bugs -- any commands the update_chain_flags
function sends can get stuck and subsequent commands also
fail.

The fix is almost trivial: since there's no reason to send
an async command here (in fact, there almost never should
be since many mac80211 callbacks can sleep) just make the
function wait for the card to process the command and then
return and clear the PMI bit.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoiwlwifi: do proper hw restart
Johannes Berg [Fri, 8 May 2009 20:44:36 +0000]
iwlwifi: do proper hw restart

When the microcode fails for any reason, ask mac80211 to
recover instead of trying ourselves and failing at it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: remove ieee80211_ht_bss_info
Johannes Berg [Fri, 8 May 2009 19:21:41 +0000]
mac80211: remove ieee80211_ht_bss_info

This struct is no longer used (and hasn't been for a while).

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: properly track HT operation_mode
Johannes Berg [Fri, 8 May 2009 19:21:06 +0000]
mac80211: properly track HT operation_mode

When we disassociate, we set the channel to non-HT which
obviously invalidates any ht_operation_mode setting. But
when we then associate with the next AP again, we might
still have the ht_operation_mode from the previous AP
cached and fail to configure the hardware with the new
(but unchanged) operation mode. This patch fixes it by
separately tracking whether our cache is valid.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: move HT operation mode BSS info
Johannes Berg [Fri, 8 May 2009 18:47:39 +0000]
mac80211: move HT operation mode BSS info

There really is no need to have a separate struct for a
single variable. The fact that it exists is due to the
code legacy, but we can remove that now. Very simple.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agort2x00: Fix chipset detection for rt73usb
Ivo van Doorn [Fri, 8 May 2009 16:30:43 +0000]
rt2x00: Fix chipset detection for rt73usb

The lower 4 bytes of the chipset revision must contain
a non-zero value. This bug was introduced by
"rt2x00: Simplify rt2x00_check_rev".

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: improve scan timing
Johannes Berg [Fri, 8 May 2009 12:12:21 +0000]
mac80211: improve scan timing

The call to ieee80211_hw_config() is supposed to apply changes
synchronously, so once it returns the parameters are applied to
the hardware. Thus, there really is no need to delay the probing
by the channel switch time again since the channel switch has
already happened once we get to this code.

Additionally, there is no need to wait for a NAV update (probe
delay) when the channel is passively scanned. Remove that extra
time too.

This cuts scanning time from over 7 seconds to under 4 on ar9170,
which is due to the number of channels scanned and ar9170's switch
time being advertised as 135ms (my test now indicates it is about
77ms with the current driver, but the difference might also be due
to using a different machine with different USB controllers).

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: MFP - Drop unprotected Action frames prior key setup
Jouni Malinen [Fri, 8 May 2009 09:36:03 +0000]
mac80211: MFP - Drop unprotected Action frames prior key setup

When management frame protection (IEEE 802.11w) is used, unprotected
Robust Action frames are not allowed prior to key configuration.
However, unprotected Deauthentication and Disassociation frames are
allowed at that point, but not after key configuration.

Make ieee80211_drop_unencrypted() handle the special cases for MFP by
separating the basic Data frame case from Management frame processing
and handle the Management frames only if MFP has been negotiated. In
addition, do not use sdata->drop_unencrypted for Management frames
since the decision on whether to accept the frame depends on the key
being configured.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agomac80211: Drop unencrypted frames based on key setup
Jouni Malinen [Fri, 8 May 2009 09:34:10 +0000]
mac80211: Drop unencrypted frames based on key setup

When using nl80211, we do not have a mechanism to set
sdata->drop_unencrypted. Currently, this breaks code that is supposed
to drop unencrypted frames when protection is expected since
ieee80211_rx_h_decrypt() is optimized to not set rx->key when the
frame is not protected.

This patch modifies ieee80211_rx_h_decrypt() to set rx->key for all
frames and only skip decryption if the frame is not protected. This
allows ieee80211_drop_unencrypted() to correctly drop frames even if
drop_unencrypted is not set.

The changes here are not enough to handle all cases, though. Additional
patches will be needed to implement proper IEEE 802.1X PAE for station
mode (currently, this is only used for AP mode) and some additional
rules are needed for MFP to drop unprotected Robust Action frames prior
to having PTK and IGTK configured.

In theory, the unprotected frames could and should be dropped in
ieee80211_rx_h_decrypt(). However, due to the special case with EAPOL
frames that have to be allowed to be received unprotected even when
keys are set, it is simpler to only set rx->key and allow the
ieee80211_frame_allowed() function to handle the actual dropping of
data frames after 802.11->802.3 header conversion. In addition,
unprotected robust management frames are dropped before they are
processed.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>